
room(kitchen).
room(office).
room(hall). 
room(dining room).
room(cellar). 
 
door(office, hall).
door(kitchen, office).
door(hall, dining room).
door(kitchen, cellar).
door(dining room, kitchen).
 
location(desk, office).
location(apple, kitchen). 
location(flashlight, desk). 
location(washing machine, cellar).
location(nani, washing machine).
location(broccoli, kitchen).
location(crackers, kitchen).
location(computer, office).
 
edible(apple).
edible(crackers).
tastes_yucky(broccoli).
here(kitchen).